FILES-PANAMA-CANAL-WORKS-STOPPAGE

FILES-PANAMA-CANAL-WORKS-STOPPAGE

RODRIGO ARANGUA / AFP/Getty Images

(FILES) Panama Canal locks under construction as seen on August 20, 2013. A Spanish-led consortium threatened on January 2, 2014 to halt a massive, $5.3 billion (3.9-billion-euro) expansion of the Panama Canal, which handles five percent of world maritime trade, because of a row over cost...

(FILES) Panama Canal locks under construction as seen on August 20, 2013. A Spanish-led consortium threatened on January 2, 2014 to halt a massive, $5.3 billion (3.9-billion-euro) expansion of the Panama Canal, which handles five percent of world maritime trade, because of a row over cost... (RODRIGO ARANGUA / AFP/Getty Images)

(FILES) Panama Canal locks under construction as seen on August 20, 2013. A Spanish-led consortium threatened on January 2, 2014 to halt a massive, $5.3 billion (3.9-billion-euro) expansion of the Panama Canal, which handles five percent of world maritime trade, because of a row over cost...